Filling-control mechanism for looms



H; G. B. AMBLER I FILLING CONTROL MECHANISM FOR LOOM S" Filed Feb. 10.1922 2 Sheets-Sheet 1 .7 89 (Q is I lnvenior: 4 tieorgeflm mazen Dec, 4,1923.

G. B. AMBLER FILLING CONTROL MECHANISM FOR LOOMS Filed Feb. 10.

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mates FATE GEORGE B. AMBLER, F LEOMINSTER, MASSACHUSETTS, ASSIGNOB TO1?. A. WHITNEY CARRIAGE COMPANY, OF LEOMINSTER, MASSACHUSETTS, ACORPORATION OF MASSACHUSETTS.

Application filed February 10, 1922. Serial No. 535,476.

To all whom it may concern:

Be it known that I, GEORGE B. AMBLER, a citizen of the United States,and aiesident of Leominster, county of Worcester, State ofMassachusetts, have invented an Improvement in Filling-Control Mechanismfor Looms, of which the following description, in connection with theaccompanying drawings, is a specification, like characters on thedrawings representing like parts.

This invention relates to looms and more particularly to that type of100m wherein a length of filling is drawn through the shed from a supplyas distinguished from the usual practice wherein the supply of fillingis carried through the shed on a shuttle. Such types of looms areparticularly adapted for weaving relatively stiff and heavy materialsuch as cane, reed and substitutes therefor. The present invention moreparticularly relates to improvements for facilitating the control of thesupply of filling. My invention will best be understood by reference tothe following description of an illustrative embodiment thereof shown byway of example in the accompanying drawings, wherein:

Fig. 1 is an end View of the loom having my improvements incorporatedtherein;

Fig. 2 is a plan view of the filling feeding mechanism;

Fig. 3 is an end view thereof as seen from the left in Figs. 1 and 2;

Fig. i is a section on Fig. 2; and

Fig. 5 is a rear view. Referring to the drawings, I have there shown asupply of filling material consisting of a roll 5 of fiber or artificialreed journalled to rotate on a suitable stationary support 7. The end ofthe filling is supported on one side of the loom frame by the frictionalcatch 9 and it is seized and a length thereof drawn through the shed bymeans of a needle or pickingdevice (not shown) in well known manner. v

A large roll of heavy material as 5 offers a considerable and varyingresistance to unwinding and is subject to inertia. Inaccordance with myinvention I provide means whereby the filling strand is drawn from theroll 5 independently of the action of the the line 4-4 of be supportedFILLING-CONTROL MECHANISM FOR LOCMS.

needle insuch manner that a suitable slack of the filling strand isprovided adjacent the holding means 9 as illustrated diagrammatically inFig. 1 so that the needle acts merelyto overcome the frictionalresistance of the holding means 9 and operates under substantiallyconstant conditions in drawing the filling between the warps For thispurpose I preferably provide a holding means which maybe organized as aunit and secured to the side frame 13o-f the loom and herein I provide asuitable bracket or frame 15 which provides arbearing for a shaft 17atone end of which is a gear 19,

herein a spur gear, adapted to mesh with a gear 21 mounted on one of thepower driven shafts of the loom, the spur gear 00111160 tion, of course,being exemplary of other means for providing a power transmittingconnection between one of the driven shafts of the loom and the shaft17. The shaft 17 by means of the gear train 21, best shown in Fig. 5,may serve to drive one onmore, herein two, feed wheels 23 suitably.journalled on horizontal axes in the bracket 15 and over the groovedfaces of which the filling is adapted to be trained. Suitable idlewheels 25 cooperate with the feed wheels 23 and herein I have shown aplate 27 journalled (see Fig. 2) on an axis 29 transverse to the axes ofthe wheels 23 and having journalled therein the shaftsof the wheels 25.The member 27 normally swings by gravity to press the edges of wheels 25against wheels 23 and I may'also provide a spring 31 (see Fig. 4)secured to the member 27 and to a web 33 on the frame 15 for drawing themember 27 downwardly above its aXis'to press the wheels together.

As seen in Fig. 1 the filling strand is led between the wheels and Ihave herein shown a bell mouthed fairleader35 at the intake sidethereof, a tubular fairleader or guide 37 between the pairs of wheelsand corresponding in position to a common tangent to the pitch circlesand a third guide 39 at the further side-of the feeding wheels. As seenfrom Fig. 4, the fairleader 37 may from a post 41 rising at the rear ofthe wheels from the web 33. v r

. orF cE.

that if the parts are in the position shown arrow in Fig. 4,

- 4.5 (Fig. 13

in Fig. 1, the feed wheels 23 will be continuously driven and will drawoff the filling strand from theroll 5 and deliver a supply of slackstrand between the roll and the holding device '9 as shown in Fig. 1.The needle, operating intermittently,draws up a sufiicient amount of thefilling strand from this slack without any resistance from the heavyroll .5. The speed of the parts is so proportioned that thecon'tinuous'feed' of the strand supplies constantly sufiicient slack forthe action of the needle. It is desirable, however, at .times tointerrupt the feed and for this purpose I provide suitable manuallyoperated means for moving the idler rolls to a position where they willnolonger press thestrand against the idler wheel's. In order that theymay stay in this position until it is desired to start the feedagainpreferably the means for disengaging them is made self-sustaining.Herein I show (see 'F 4) journalled in the post 11 the shaft of a cam 43which may be turned bya laterally disposed hand wheel Obviously if thecam 43 is turned, for instance, in the direction of .the it will liftthe member 27 against the action of thespring 31, raise the idler wheelsfrom the strand which, being-no'longer positively pressed against thefeed wheels 23, will permit the latter to slip 'wayof on the same sothat the feed is interrupted. An important. feature of the invention isthat the filling strand is held for a consider- K able distance betweenthe two pairs of wheels and by the tubnlar guide 3.7 and any kinks orirregularities therein are straightened out and the strand is delivered.in good condition for the weaving operation. The member 37.maybe-designed closelyto fit the strand and will to an extent smooth itoff. As one set of rolls is disposed on one side of the guide 37 andtends to push the strand therethrough while the second set of rolls ison the further side and tends to pull the strand out, this action may bevery effectually accomplished. I Y V Having thus described in detail theparticular embodiment of my invention shown by example in theaccompanying draw ings, what I claim as new and desire to secure byLetters Patent is:

lJIn a loom of the class described wherein picking means grasps the endof a filling strand to draw .it through the shed, a. holding device forpresenting the end of the filling strand for operation of the pickingmeans thereon, a tubular guide in advance of aid ho ding driven s randfeeding strand adjacent said guide,

2- lnaloomof the class des ribed whe ,niekingmeans grasps the end o afilling strand to draw-it through the shed, a hold- 'leads to saiddevice device of considerable lengthand closely receiving said strandand power means to act on the ing device for presenting the end oftheffilling strand for operation of the picking means thereon, a longstraight closely fitting tubular guide through which the strand and feedwheels acting on the strand adjacentsaid guide.

In aloom of the class described wherein picking means grasps the end ofafilling strand to draw it through the shed, a holding device forpresenting the end of the filling strand for operation of the pickingmeans thereon, pairs of feed wheels engaging the strand at spaced pointsas it leads to said device and a guide close'lyfitting the strand andoccupying substantially theposition of a common tangent to the wheels.in 4:. In a loom of the class described wherein picking means graspstheend of a filling strandto draw it through the shed,'a filling strandsupply, a holding device for presenting the end of thestrand foroperationof the picking means thereon, feed Wheels act; 7

ing onthe strand between supply and'holder and manuallyoperable meansfor moving at least some of said wheels to a position wherein they aresupported out of engagement with the rest thereby to interrupt the feed.

5. A device for feeding filling strand comprising as a unitary mechanisma. frame for mounting-on the loom side,a shaft carried thereby having anend provided with agear adapted to cooperate with a gear on ashaft ofthe loom a feed wheel taking motion therefrom, a movable support on theframe carrying a cooperating Wheel, aspring acting on said srpport fornormally holding the wheels together and manually operable means forlifting and holding said support with the wheels apart. 1 1 V v 6. Adevice for feeding filling strand comprising as a unitary. mechanism aframe for mounting on the loom side, a shaft carried thereby having anend provided with a gear adapted to cooperate with a gear on a shaft ingon said support for normally holdingthe wheels together andself-sustaining means for lifting the said support to move the wheelsapart. 7

7. A device for feeding filling strand comprising as a unitary mechanisma frame for mounting on the loom side, a shaft carried thereby having anend provided with a gear adapted to cooperate with a gear on a shaft ofthe loom, a feed 'wheel taking motion therefrom, a movable support'onthe frame carrying a cooperating wheel, a spring acta on said supportfor normally holcling'the wheels together. a cam cooperating with saidsupport and a handle for moving the cam.

8. A strand feeding device comprising a driven wheel and; arm pi ted onan axi transverse to that of th'edriven wheel, a.co'

operating Wheel journalled on the arm and means acting on the armnormally to press the Wheels together.

9. A strand feeding device comprising a 5 driven Wheel and arm pivotedon an axis transverse to that of the driven Wheel, a cooperating Wheeljournalled on the arm, a

the wheels together an self-sustaining means spring acting on the armnormally to press (1 manually operable for lifting the am against theaction of the spring.

In testimony whereof, I have signed my name to this specification.

ORGE B. AMBLER.

